Zenbook crash when unplug AC power

So it's basically the problem in the title, when I unplug the AC power cable while computer is on, I get a sudden shutdown. It's not repeatable every time, but it is very frequently. The power plug is already pretty crappy and loose fitting, so even just bumping it can cause this crash sometimes and it is very annoying. How can I fix it? I have the UX31 running 12.04.

Re: Zenbook crash when unplug AC power

I'm still having this problem on quantal quetzal 12.10. Very annoying problem because the UX31 zenbook has a crappy loose power plug anyway, so you can disconnect it just by bumping it while it's on your lap, and then the whole OS crashes. Ouch!

If anyone knows a workaround or fix, it would be greatly appreciated...

Re: Zenbook crash when unplug AC power

I had the same problem on my UX31. VERY annoying, as the power plug is now so loose that i need to put some a pen under it to keep it connected, so then I can't move the zenbook anywhere without unplugging and having to restart the OS.
I tried many suggestions from this thread and others, nothing worked.

Then I found a purely hardware and very simple solution that is (for now) working for me : DISCONNECT then RECONNECT the BATTERY.
Though, on those netbooks, it's a bit trickier than ejecting a battery pack, it requires unscrewing the back plate, and carefully unplugging the connector without pulling on the cables.
But then, the issue disappeared for me since yesterday !! And if it reappears, i will try to repeat this.

I'm no expert in hardware, but I suppose that there must be a bug in the firmware of some charge processor. This bug could be triggered by some condition, ie bad recovering from sleep mode, full discharge or anything similar. And then, the only way I know to reset it, is to unplug the battery.